Dell NetWorker 19.9 Administration Guide

Cloning save sets and volumes

The cloning operation reads save sets from a volume within a backup or archive pool and writes the data to a volume in a clone pool. You can clone save sets multiple times, but NetWorker must write each clone to a separate volume.

When you clone backup data, the clone operation validate that NetWorker can read the original backup data successfully in the media database and on the media volume, which provides additional assurance that you can recover the data.

When you try to establish clone save session enabling writes to target for creation of a new copy, by design it is checked if the expiry time of the save set is lesser than the current time. If expiry is non-zero and less than the current time, it means that the time when such check is performed, clone is marked as failed in the clone log with notification retention time must be in the future. To create further copies using clone, it is important that the save set has not expired before clone initiation or is not going to expire during the clone run.

To schedule save set cloning, configure Data Protection Group, Data Protection Policy, followed by a workflow having a clone action. The Data Protection Policies chapter provides detailed information about creating a clone action. To manually clone backup save sets or to clone the backup volume itself from the command prompt, use the nsrclone command.